help with bass box pro 6

i'm trying to learn how to design a box for a jl 15w3 . it asks for all the fs , qts and every thing . so i put in what i got from the isd program and the tech manual of the speaker. but it dont say where to put it at dual voice coil single or paraelle . and is the sub 400 on one voice coil or 2 . where can i get help